The colour of a product’s packaging often denotes what is inside of it. The most common example of this can be seen in the flavours of crisps. For example, the colour red commonly denotes ready salted whereas blue is often cheese and onion. The colour coding of product packaging can also be seen in cleaning products, with lemon yellow packaging or apple green. In addition to the packaging of products, the choice of colour can also represent emotion (with red as sensual, or black for mourning), instructions (such as green for go), and gender (with blue and pink). In this way, the colour of the world around us can often be a helpful message. However, these ‘colour codes’ are often dependant to a particular culture they are formed in and may not be universal.